<?php

/**
 * Router Extensible.
 *
 * Parses the request URL into controller, action, and parameters.
 *
 * PHP versions 5
 * CAKEPHP versions 2.x
 * 
 * Green CMS - Content Management System and Framework Powerfull by Cakephp
 * Copyright 2012, GREEN GLOBAL CO., LTD (toancauxanh.vn)
 * 
 * CakePHP(tm) :  Rapid Development Framework (http://www.cakephp.org)
 * Copyright 2005-2011, Cake Software Foundation, Inc. (http://www.cakefoundation.org)
 *
 * Licensed under The MIT License
 * Redistributions of files must retain the above copyright notice.
 *
 * @author        Technology Lab No.I <tech1@toancauxanh.vn>
 * @link          
 * @package       Green.Routing
 * @since         Green v 1.0
 * @license       MIT License (http://www.opensource.org/licenses/mit-license.php)
 */
App::uses('CakeRequest', 'Network');
App::uses('CakeRoute', 'Routing/Route');
//<!-- Add lib
App::uses('I18n', 'I18n');
App::uses('CakeSession', 'Model/Datasource');

//--> /Add lib
/**
 * Parses the request URL into controller, action, and parameters.  Uses the connected routes
 * to match the incoming url string to parameters that will allow the request to be dispatched.  Also
 * handles converting parameter lists into url strings, using the connected routes.  Routing allows you to decouple
 * the way the world interacts with your application (urls) and the implementation (controllers and actions).
 *
 * ### Connecting routes
 *
 * Connecting routes is done using Router::connect().  When parsing incoming requests or reverse matching
 * parameters, routes are enumerated in the order they were connected.  You can modify the order of connected
 * routes using Router::promote().  For more information on routes and how to connect them see Router::connect().
 *
 * ### Named parameters
 *
 * Named parameters allow you to embed key:value pairs into path segments.  This allows you create hash
 * structures using urls.  You can define how named parameters work in your application using Router::connectNamed()
 *
 * @package       Cake.Routing
 */
class Router {

    /**
     * Array of routes connected with Router::connect()
     *
     * @var array
     */
    public static $routes = array();

    /**
     * List of action prefixes used in connected routes.
     * Includes admin prefix
     *
     * @var array
     */
    protected static $_prefixes = array();

    /**
     * Directive for Router to parse out file extensions for mapping to Content-types.
     *
     * @var boolean
     */
    protected static $_parseExtensions = false;

    /**
     * List of valid extensions to parse from a URL.  If null, any extension is allowed.
     *
     * @var array
     */
    protected static $_validExtensions = array();

    /**
     * 'Constant' regular expression definitions for named route elements
     *
     */

    const ACTION = 'index|show|add|create|edit|update|remove|del|delete|view|item';
    const YEAR = '[12][0-9]{3}';
    const MONTH = '0[1-9]|1[012]';
    const DAY = '0[1-9]|[12][0-9]|3[01]';
    const ID = '[0-9]+';
    const UUID = '[A-Fa-f0-9]{8}-[A-Fa-f0-9]{4}-[A-Fa-f0-9]{4}-[A-Fa-f0-9]{4}-[A-Fa-f0-9]{12}';

    /**
     * Named expressions
     *
     * @var array
     */
    protected static $_namedExpressions = array(
        'Action' => Router::ACTION,
        'Year' => Router::YEAR,
        'Month' => Router::MONTH,
        'Day' => Router::DAY,
        'ID' => Router::ID,
        'UUID' => Router::UUID
    );

    /**
     * Stores all information necessary to decide what named arguments are parsed under what conditions.
     *
     * @var string
     */
    protected static $_namedConfig = array(
        'default' => array('page', 'fields', 'order', 'limit', 'recursive', 'sort', 'direction', 'step'),
        'greedyNamed' => true,
        'separator' => ':',
        'rules' => false,
    );

    /**
     * The route matching the URL of the current request
     *
     * @var array
     */
    protected static $_currentRoute = array();

    /**
     * Default HTTP request method => controller action map.
     *
     * @var array
     */
    protected static $_resourceMap = array(
        array('action' => 'index', 'method' => 'GET', 'id' => false),
        array('action' => 'view', 'method' => 'GET', 'id' => true),
        array('action' => 'add', 'method' => 'POST', 'id' => false),
        array('action' => 'edit', 'method' => 'PUT', 'id' => true),
        array('action' => 'delete', 'method' => 'DELETE', 'id' => true),
        array('action' => 'edit', 'method' => 'POST', 'id' => true)
    );

    /**
     * List of resource-mapped controllers
     *
     * @var array
     */
    protected static $_resourceMapped = array();

    /**
     * Maintains the request object stack for the current request.
     * This will contain more than one request object when requestAction is used.
     *
     * @var array
     */
    protected static $_requests = array();

    /**
     * Initial state is populated the first time reload() is called which is at the bottom
     * of this file.  This is a cheat as get_class_vars() returns the value of static vars even if they
     * have changed.
     *
     * @var array
     */
    protected static $_initialState = array();

    /**
     * Default route class to use
     *
     * @var string
     */
    protected static $_routeClass = 'CakeRoute';
    //<!-- Add Extensible
    /**
     * Determine if Application has been started.
     *
     * @var boolean
     */
    private static $_started = false;

    /**
     * The current URL scheme
     *
     * @var string
     */
    protected static $_scheme = null;

    /**
     * The current URL domain
     *
     * @var string
     */
    protected static $_domain = null;

    /**
     * The config language of application
     *
     * @var array
     */
    protected static $_language = array();

    /**
     * Determine if Application has been multilingual
     *
     * @var string
     */
    protected static $_isMultilingual = false;

    /**
     * Current URL language prefix.
     *
     * @var string
     */
    protected static $_langPrefix = null;

    /**
     * Preg pattern of all URL language path prefixs.
     *
     * @var string
     */
    protected static $_langPrefixs = null;

    /**
     * Determine the language from the URL (Path prefix or domain).
     *
     * @var mixed boolean false to use domain, boolean true to use path prefix or string to url query 
     */
    protected static $_negotiation = null;

    /**
     * List match url cached
     * 
     * @var array
     */
    protected static $_regexps = array();

    /**
     * Determine if the Application has been started.
     *
     * @return boolean Success
     */
    public static function started() {
        return self::$_started;
    }

    /**
     * Init config for application by route.
     *
     * @return void
     */
    public static function init() {
        $configs = Configure::read('Routing');
        $languages = Configure::read('Languages');

        if (!defined('FULL_BASE_URL') || empty($configs) || !is_array($configs)
                || empty($languages) || empty($configs['language']) || empty($languages[$configs['language']])) {
            throw new ConfigureException(
                    __d('debug', 'System error , Config file router of system is missing or corrupted.')
            );
        }

        self::$_isMultilingual = count($languages) >= 2;

        self::$_scheme = env('HTTPS') ? 'https' : 'http';
        self::$_domain = env('HTTP_HOST');

        if (self::$_isMultilingual && !empty($configs['detection']['enabled'])) {
            self::$_negotiation = (bool) $configs['detection']['isPrefix'];
            if (self::$_negotiation) {
                $prefixes = array();
                foreach ($languages as $language) {
                    $prefixes[] = $language['prefix'];
                }
                self::$_langPrefixs = implode('|', $prefixes);
            }
        }

        if ($configs['extension']) {
            call_user_func_array(array('self', 'parseExtensions'), (array) $configs['extension']);
        }
    }

    /**
     * Application startup , the URL will be routing redirection if an invalid. Load system,plugin config to load on startup for application
     * Detection and selection application language
     *
     * @return void
     */
    public static function startup(&$controller) {

        if (self::$_started) {
            return;
        }

        self::$_started = true;
        $request = $controller->request;

        $configs = Configure::read('Routing');
        $languages = Configure::read('Languages');
        $fullBaseUrl = FULL_BASE_URL;

        CakeSession::init($controller->base);

        self::$_language = null;

        if (self::$_negotiation === true) {
            if (isset($request->params['language'])) {
                foreach ($languages as $language) {
                    if ($language['prefix'] === $request->params['language']) {
                        self::$_language = $language['code'];
                        break;
                    }
                }
            }
        } elseif (self::$_negotiation === false) {
            foreach ($languages as $language) {
                if (self::fullBaseUrl($language['domain']) === $fullBaseUrl) {
                    self::$_language = $language['code'];
                    break;
                }
            }
        }

        if (!self::$_language && !empty($configs['detection']['session']) && !empty($configs['detection']['parameter'])) {
            if ($configs['detection']['parameter'] && is_null(self::$_negotiation)) {
                self::$_negotiation = (string) $configs['detection']['parameter'];
            }
            if (!empty($request->query[$configs['detection']['parameter']])) {
                self::$_language = strtolower($request->query[$configs['detection']['parameter']]);
            } else {
                self::$_language = CakeSession::read('Config.language');
            }
        }

        if (!self::$_language && !empty($configs['detection']['browser'])) {
            $acceptLanguages = CakeRequest::acceptLanguage();
            foreach ($acceptLanguages as $key => $langKey) {
                if (!isset($languages[$langKey]) && strpos($langKey, '-') !== false) {
                    $langKey = substr($langKey, 0, 2);
                }
                if (isset($languages[$langKey])) {
                    self::$_language = $langKey;
                    break;
                }
            }
        }

        if (!self::$_language || !isset($languages[self::$_language])) {
            self::$_language = $configs['language'];
        }

        $_language = $languages[self::$_language];
        unset($languages);
        CakeSession::write('Config.language', self::$_language);

        $url = $request->url;

        if (!empty($configs['route']) && (empty($url) || $url === '/'
                || (self::$_negotiation === true && rtrim($url, '/') === $_language['prefix']))) {
            $url = $configs['route'];
        } elseif ($url && empty($request->params['ext'])) {
            if ($url !== '/' && substr($url, -1) !== '/') {
                $extension = self::parseExt($url);
                if (!$extension && self::$_validExtensions) {
                    $url .= '.' . self::$_validExtensions[0];
                } elseif (in_array($extension, array('gif', 'png', 'jpg', 'jpeg', 'css', 'js', 'swf'))) {
                    header('HTTP/1.1 404 Not Found');
                    exit(0);
                }
            }
        }

        if (is_bool(self::$_negotiation) && (!empty($configs['detection']['redirect']) || self::$_language !== $configs['language'])) {
            if (self::$_negotiation) {
                self::$_langPrefix = $_language['prefix'];
                if (!empty(self::$_langPrefix) && (empty($request->params['language']) || $request->params['language'] != self::$_langPrefix)) {
                    $url = self::$_langPrefix . '/' . $url;
                }
            } else {
                if (!empty($_language['domain'])) {
                    $_domain = self::fullBaseUrl($_language['domain']);
                    if ($fullBaseUrl !== $_domain) {
                        $fullBaseUrl = $_domain;
                    }
                }
            }
        }

        if (!empty($request->params) && ($fullBaseUrl !== FULL_BASE_URL || $url !== $request->url)) {
            $controller->redirect($fullBaseUrl . str_replace('//', '/', $controller->base . '/' . $url) . self::queryString($request->query));
        }

        $l10n = I18n::getInstance()->l10n;
        $l10n->get(self::$_language);

        $defaultConfig = array('locale', 'charset', 'direction');
        $reswite = false;
        foreach ($defaultConfig as $defaultKey) {
            if (empty($_language[$defaultKey])) {
                $reswite = true;
                $_language[$defaultKey] = $l10n->{$defaultKey};
                continue;
            }
            $l10n->{$defaultKey} = $_language[$defaultKey];
        }
        if ($reswite) {
            Configure::write('Languages.' . self::$_language, $_language);
        }
        if ($_language['charset']) {
            $controller->response->charset($_language['charset']);
        }
        if ($controller->plugin) {
            $moduleConfig = Configure::read('Modules.' . $controller->plugin);
            // Load config of Module on application started
            if (!empty($moduleConfig['autoConfig'])) {
                Configure::load('Module.' . $controller->plugin);
            }
        }
    }

    /**
     * Determine if the Application is multilingual.
     *
     * @return boolean
     */
    public static function isMultilingual() {
        return (self::$_isMultilingual === true);
    }

    /**
     * Get default language
     *
     * @return boolean
     */
    public static function defaultLanguage() {
        return Configure::read('Routing.language');
    }

    /**
     * Get current language code
     *
     * @return string language code
     */
    public static function language() {
        return self::$_language;
    }

    /**
     * Get config with language
     *
     * @param mixel $key string to get a config,null to get all config
     * @param mixel $key string language code, empty to get current language
     * @return mixel config
     */
    public static function getConfig($key = null, $language = null) {
        if (empty($language)) {
            $language = self::$_language;
        }
        $_data = Configure::read('Languages.' . $language);
        if (is_null($key)) {
            return $_data;
        }
        if (isset($_data[$key])) {
            return $_data[$key];
        }
        return null;
    }

    /**
     * Return full base url
     *
     * @param $domain string domain url
     * @return string
     */
    public static function fullBaseUrl($domain) {
        return self::$_scheme . '://' . $domain;
    }

    /**
     * Return extension of the URL
     *
     * @param $url String
     * @return string
     */
    public static function parseExt($url) {
        $ext = '';
        if (preg_match('/\.[0-9a-zA-Z]*$/', $url, $match) === 1) {
            $ext = substr($match[0], 1);
        }
        return strtolower($ext);
    }

    /**
     * Check if a path matches any pattern in a set of patterns.
     *
     * @param string $patterns String containing a set of patterns separated by \n, \r or \r\n.
     * @param mixed $path String as path to match. Or CakeRequest to use actual page url.
     * @return boolean TRUE if the path matches a pattern, FALSE otherwise.
     */
    public function match($patterns, $path) {
        if (empty($patterns)) {
            return false;
        }
        if ($path instanceof CakeRequest) {
            if (!isset($path->__here)) {
                $path->__here = self::normalize($path->here(false));
                if (!empty($path->params['language'])) {
                    $path->__here = preg_replace('/^\/' . preg_quote($path->params['language'], '/') . '/', '', $path->__here, 1);
                }
            }
            $path = $path->__here;
        }

        if (empty($path)) {
            $path = '/';
        }

        if (!isset(self::$_regexps[$patterns])) {
            // Convert path settings to a regular expression.
            // Therefore replace newlines with a logical or, /* with asterisks and the <front> with the frontpage.
            $search = array(
                '/(\r\n?|\n)/', // newlines
                '/\\\\\*/', // asterisks
                '/(^|\|)\\\\<front\\\\>($|\|)/' // <front>
            );
            $replacements = array(
                '|',
                '.*',
                '\1\/\2'
            );
            self::$_regexps[$patterns] = '/^(' . preg_replace($search, $replacements, preg_quote($patterns, '/')) . ')$/';
        }
        return (bool) preg_match(self::$_regexps[$patterns], $path);
    }

    //--> /Add Extensible

    /**
     * Set the default route class to use or return the current one
     *
     * @param string $routeClass to set as default
     * @return mixed void|string
     * @throws RouterException
     */
    public static function defaultRouteClass($routeClass = null) {
        if (is_null($routeClass)) {
            return self::$_routeClass;
        }

        self::$_routeClass = self::_validateRouteClass($routeClass);
    }

    /**
     * Validates that the passed route class exists and is a subclass of CakeRoute
     *
     * @param $routeClass
     * @return string
     * @throws RouterException
     */
    protected static function _validateRouteClass($routeClass) {
        if (!class_exists($routeClass) || !is_subclass_of($routeClass, 'CakeRoute')) {
            throw new RouterException(__d('cake_dev', 'Route classes must extend CakeRoute'));
        }
        return $routeClass;
    }

    /**
     * Sets the Routing prefixes.
     *
     * @return void
     */
    protected static function _setPrefixes() {
        $routing = Configure::read('Routing');
        if (!empty($routing['prefixes'])) {
            self::$_prefixes = array_merge(self::$_prefixes, (array) $routing['prefixes']);
        }
    }

    /**
     * Gets the named route elements for use in app/Config/routes.php
     *
     * @return array Named route elements
     * @see Router::$_namedExpressions
     */
    public static function getNamedExpressions() {
        return self::$_namedExpressions;
    }

    /**
     * Resource map getter & setter.
     *
     * @param array $resourceMap Resource map
     * @return mixed
     * @see Router::$_resourceMap
     */
    public static function resourceMap($resourceMap = null) {
        if ($resourceMap === null) {
            return self::$_resourceMap;
        }
        self::$_resourceMap = $resourceMap;
    }

    /**
     * Connects a new Route in the router.
     *
     * Routes are a way of connecting request urls to objects in your application.  At their core routes
     * are a set or regular expressions that are used to match requests to destinations.
     *
     * Examples:
     *
     * `Router::connect('/:controller/:action/*');`
     *
     * The first parameter will be used as a controller name while the second is used as the action name.
     * the '/*' syntax makes this route greedy in that it will match requests like `/posts/index` as well as requests
     * like `/posts/edit/1/foo/bar`.
     *
     * `Router::connect('/home-page', array('controller' => 'pages', 'action' => 'display', 'home'));`
     *
     * The above shows the use of route parameter defaults. And providing routing parameters for a static route.
     *
     * {{{
     * Router::connect(
     *   '/:lang/:controller/:action/:id',
     *   array(),
     *   array('id' => '[0-9]+', 'lang' => '[a-z]{3}')
     * );
     * }}}
     *
     * Shows connecting a route with custom route parameters as well as providing patterns for those parameters.
     * Patterns for routing parameters do not need capturing groups, as one will be added for each route params.
     *
     * $options offers four 'special' keys. `pass`, `named`, `persist` and `routeClass`
     * have special meaning in the $options array.
     *
     * `pass` is used to define which of the routed parameters should be shifted into the pass array.  Adding a
     * parameter to pass will remove it from the regular route array. Ex. `'pass' => array('slug')`
     *
     * `persist` is used to define which route parameters should be automatically included when generating
     * new urls. You can override persistent parameters by redefining them in a url or remove them by
     * setting the parameter to `false`.  Ex. `'persist' => array('lang')`
     *
     * `routeClass` is used to extend and change how individual routes parse requests and handle reverse routing,
     * via a custom routing class. Ex. `'routeClass' => 'SlugRoute'`
     *
     * `named` is used to configure named parameters at the route level. This key uses the same options
     * as Router::connectNamed()
     *
     * @param string $route A string describing the template of the route
     * @param array $defaults An array describing the default route parameters. These parameters will be used by default
     *   and can supply routing parameters that are not dynamic. See above.
     * @param array $options An array matching the named elements in the route to regular expressions which that
     *   element should match.  Also contains additional parameters such as which routed parameters should be
     *   shifted into the passed arguments, supplying patterns for routing parameters and supplying the name of a
     *   custom routing class.
     * @see routes
     * @return array Array of routes
     * @throws RouterException
     */
    public static function connect($route, $defaults = array(), $options = array()) {
        foreach (self::$_prefixes as $prefix) {
            if (isset($defaults[$prefix])) {
                if ($defaults[$prefix]) {
                    $defaults['prefix'] = $prefix;
                } else {
                    unset($defaults[$prefix]);
                }
                break;
            }
        }
        if (isset($defaults['prefix'])) {
            self::$_prefixes[] = $defaults['prefix'];
            self::$_prefixes = array_keys(array_flip(self::$_prefixes));
        }
        $defaults += array('plugin' => null);
        if (empty($options['action'])) {
            $defaults += array('action' => 'index');
        }
        $routeClass = self::$_routeClass;
        if (isset($options['routeClass'])) {
            $routeClass = self::_validateRouteClass($options['routeClass']);
            unset($options['routeClass']);
        }
        if ($routeClass == 'RedirectRoute' && isset($defaults['redirect'])) {
            $defaults = $defaults['redirect'];
        }

        //<!-- Add language route
        if (self::$_langPrefixs) {
            $options['language'] = self::$_langPrefixs;
            self::$routes[] = new $routeClass('/:language' . $route, $defaults, $options);
        }
        unset($options['language']);
        //--> \Add language route

        self::$routes[] = new $routeClass($route, $defaults, $options);
        return self::$routes;
    }

    /**
     * Connects a new redirection Route in the router.
     *
     * Redirection routes are different from normal routes as they perform an actual
     * header redirection if a match is found. The redirection can occur within your
     * application or redirect to an outside location.
     *
     * Examples:
     *
     * `Router::redirect('/home/*', array('controller' => 'posts', 'action' => 'view', array('persist' => true));`
     *
     * Redirects /home/* to /posts/view and passes the parameters to /posts/view.  Using an array as the
     * redirect destination allows you to use other routes to define where a url string should be redirected to.
     *
     * `Router::redirect('/posts/*', 'http://google.com', array('status' => 302));`
     *
     * Redirects /posts/* to http://google.com with a HTTP status of 302
     *
     * ### Options:
     *
     * - `status` Sets the HTTP status (default 301)
     * - `persist` Passes the params to the redirected route, if it can.  This is useful with greedy routes,
     *   routes that end in `*` are greedy.  As you can remap urls and not loose any passed/named args.
     *
     * @param string $route A string describing the template of the route
     * @param array $url A url to redirect to. Can be a string or a Cake array-based url
     * @param array $options An array matching the named elements in the route to regular expressions which that
     *   element should match.  Also contains additional parameters such as which routed parameters should be
     *   shifted into the passed arguments. As well as supplying patterns for routing parameters.
     * @see routes
     * @return array Array of routes
     */
    public static function redirect($route, $url, $options = array()) {
        App::uses('RedirectRoute', 'Routing/Route');
        $options['routeClass'] = 'RedirectRoute';
        if (is_string($url)) {
            $url = array('redirect' => $url);
        }
        return self::connect($route, $url, $options);
    }

    /**
     * Specifies what named parameters CakePHP should be parsing out of incoming urls. By default
     * CakePHP will parse every named parameter out of incoming URLs.  However, if you want to take more
     * control over how named parameters are parsed you can use one of the following setups:
     *
     * Do not parse any named parameters:
     *
     * {{{ Router::connectNamed(false); }}}
     *
     * Parse only default parameters used for CakePHP's pagination:
     *
     * {{{ Router::connectNamed(false, array('default' => true)); }}}
     *
     * Parse only the page parameter if its value is a number:
     *
     * {{{ Router::connectNamed(array('page' => '[\d]+'), array('default' => false, 'greedy' => false)); }}}
     *
     * Parse only the page parameter no matter what.
     *
     * {{{ Router::connectNamed(array('page'), array('default' => false, 'greedy' => false)); }}}
     *
     * Parse only the page parameter if the current action is 'index'.
     *
     * {{{
     * Router::connectNamed(
     *    array('page' => array('action' => 'index')),
     *    array('default' => false, 'greedy' => false)
     * );
     * }}}
     *
     * Parse only the page parameter if the current action is 'index' and the controller is 'pages'.
     *
     * {{{
     * Router::connectNamed(
     *    array('page' => array('action' => 'index', 'controller' => 'pages')),
     *    array('default' => false, 'greedy' => false)
     * );
     * }}}
     *
     * ### Options
     *
     * - `greedy` Setting this to true will make Router parse all named params.  Setting it to false will
     *    parse only the connected named params.
     * - `default` Set this to true to merge in the default set of named parameters.
     * - `reset` Set to true to clear existing rules and start fresh.
     * - `separator` Change the string used to separate the key & value in a named parameter.  Defaults to `:`
     *
     * @param array $named A list of named parameters. Key value pairs are accepted where values are
     *    either regex strings to match, or arrays as seen above.
     * @param array $options Allows to control all settings: separator, greedy, reset, default
     * @return array
     */
    public static function connectNamed($named, $options = array()) {
        if (isset($options['separator'])) {
            self::$_namedConfig['separator'] = $options['separator'];
            unset($options['separator']);
        }

        if ($named === true || $named === false) {
            $options = array_merge(array('default' => $named, 'reset' => true, 'greedy' => $named), $options);
            $named = array();
        } else {
            $options = array_merge(array('default' => false, 'reset' => false, 'greedy' => true), $options);
        }

        if ($options['reset'] == true || self::$_namedConfig['rules'] === false) {
            self::$_namedConfig['rules'] = array();
        }

        if ($options['default']) {
            $named = array_merge($named, self::$_namedConfig['default']);
        }

        foreach ($named as $key => $val) {
            if (is_numeric($key)) {
                self::$_namedConfig['rules'][$val] = true;
            } else {
                self::$_namedConfig['rules'][$key] = $val;
            }
        }
        self::$_namedConfig['greedyNamed'] = $options['greedy'];
        return self::$_namedConfig;
    }

    /**
     * Gets the current named parameter configuration values.
     *
     * @return array
     * @see Router::$_namedConfig
     */
    public static function namedConfig() {
        return self::$_namedConfig;
    }

    /**
     * Creates REST resource routes for the given controller(s).  When creating resource routes
     * for a plugin, by default the prefix will be changed to the lower_underscore version of the plugin
     * name.  By providing a prefix you can override this behavior.
     *
     * ### Options:
     *
     * - 'id' - The regular expression fragment to use when matching IDs.  By default, matches
     *    integer values and UUIDs.
     * - 'prefix' - URL prefix to use for the generated routes.  Defaults to '/'.
     *
     * @param mixed $controller A controller name or array of controller names (i.e. "Posts" or "ListItems")
     * @param array $options Options to use when generating REST routes
     * @return array Array of mapped resources
     */
    public static function mapResources($controller, $options = array()) {
        $hasPrefix = isset($options['prefix']);
        $options = array_merge(array(
            'prefix' => '/',
            'id' => self::ID . '|' . self::UUID
                ), $options);

        $prefix = $options['prefix'];

        foreach ((array) $controller as $name) {
            list($plugin, $name) = pluginSplit($name);
            $urlName = Inflector::underscore($name);
            $plugin = Inflector::underscore($plugin);
            if ($plugin && !$hasPrefix) {
                $prefix = '/' . $plugin . '/';
            }

            foreach (self::$_resourceMap as $params) {
                $url = $prefix . $urlName . (($params['id']) ? '/:id' : '');

                Router::connect($url, array(
                    'plugin' => $plugin,
                    'controller' => $urlName,
                    'action' => $params['action'],
                    '[method]' => $params['method']
                        ), array('id' => $options['id'], 'pass' => array('id'))
                );
            }
            self::$_resourceMapped[] = $urlName;
        }
        return self::$_resourceMapped;
    }

    /**
     * Returns the list of prefixes used in connected routes
     *
     * @return array A list of prefixes used in connected routes
     */
    public static function prefixes() {
        return self::$_prefixes;
    }

    /**
     * Parses given URL string.  Returns 'routing' parameters for that url.
     *
     * @param string $url URL to be parsed
     * @return array Parsed elements from URL
     */
    public static function parse($url) {
        $ext = null;
        $out = array();

        if ($url && strpos($url, '/') !== 0) {
            $url = '/' . $url;
        }
        if (strpos($url, '?') !== false) {
            $url = substr($url, 0, strpos($url, '?'));
        }

        extract(self::_parseExtension($url));

        for ($i = 0, $len = count(self::$routes); $i < $len; $i++) {
            $route = & self::$routes[$i];

            //<!-- Add Multiple Site
            if (!empty($route->options['domain'])) {
                if (!preg_match('/' . $route->options['domain'] . '/', self::$_domain)) {
                    continue;
                }
                $route->defaults['domain'] = self::$_domain;
            }
            //--> /Add Multiple Site

            if (($r = $route->parse($url)) !== false) {
                self::$_currentRoute[] = & $route;
                $out = $r;
                break;
            }
        }
        if (isset($out['prefix'])) {
            $out['action'] = $out['prefix'] . '_' . $out['action'];
        }

        if (!empty($ext) && !isset($out['ext'])) {
            $out['ext'] = $ext;
        }
        return $out;
    }

    /**
     * Parses a file extension out of a URL, if Router::parseExtensions() is enabled.
     *
     * @param string $url
     * @return array Returns an array containing the altered URL and the parsed extension.
     */
    protected static function _parseExtension($url) {
        $ext = null;

        if (self::$_parseExtensions) {
            if (preg_match('/\.[0-9a-zA-Z]*$/', $url, $match) === 1) {
                $match = substr($match[0], 1);
                if (empty(self::$_validExtensions)) {
                    $url = substr($url, 0, strpos($url, '.' . $match));
                    $ext = $match;
                } else {
                    foreach (self::$_validExtensions as $name) {
                        if (strcasecmp($name, $match) === 0) {
                            $url = substr($url, 0, strpos($url, '.' . $name));
                            $ext = $match;
                            break;
                        }
                    }
                }
            }
        }
        return compact('ext', 'url');
    }

    /**
     * Takes parameter and path information back from the Dispatcher, sets these
     * parameters as the current request parameters that are merged with url arrays
     * created later in the request.
     *
     * Nested requests will create a stack of requests.  You can remove requests using
     * Router::popRequest().  This is done automatically when using Object::requestAction().
     *
     * Will accept either a CakeRequest object or an array of arrays. Support for
     * accepting arrays may be removed in the future.
     *
     * @param CakeRequest|array $request Parameters and path information or a CakeRequest object.
     * @return void
     */
    public static function setRequestInfo($request) {
        if ($request instanceof CakeRequest) {
            self::$_requests[] = $request;
        } else {
            $requestObj = new CakeRequest();
            $request += array(array(), array());
            $request[0] += array('controller' => false, 'action' => false, 'plugin' => null);
            $requestObj->addParams($request[0])->addPaths($request[1]);
            self::$_requests[] = $requestObj;
        }
    }

    /**
     * Pops a request off of the request stack.  Used when doing requestAction
     *
     * @return CakeRequest The request removed from the stack.
     * @see Router::setRequestInfo()
     * @see Object::requestAction()
     */
    public static function popRequest() {
        return array_pop(self::$_requests);
    }

    /**
     * Get the either the current request object, or the first one.
     *
     * @param boolean $current Whether you want the request from the top of the stack or the first one.
     * @return CakeRequest or null.
     */
    public static function getRequest($current = false) {
        if ($current) {
            return self::$_requests[count(self::$_requests) - 1];
        }
        return isset(self::$_requests[0]) ? self::$_requests[0] : null;
    }

    /**
     * Gets parameter information
     *
     * @param boolean $current Get current request parameter, useful when using requestAction
     * @return array Parameter information
     */
    public static function getParams($current = false) {
        if ($current) {
            return self::$_requests[count(self::$_requests) - 1]->params;
        }
        if (isset(self::$_requests[0])) {
            return self::$_requests[0]->params;
        }
        return array();
    }

    /**
     * Gets URL parameter by name
     *
     * @param string $name Parameter name
     * @param boolean $current Current parameter, useful when using requestAction
     * @return string Parameter value
     */
    public static function getParam($name = 'controller', $current = false) {
        $params = Router::getParams($current);
        if (isset($params[$name])) {
            return $params[$name];
        }
        return null;
    }

    /**
     * Gets path information
     *
     * @param boolean $current Current parameter, useful when using requestAction
     * @return array
     */
    public static function getPaths($current = false) {
        if ($current) {
            return self::$_requests[count(self::$_requests) - 1];
        }
        if (!isset(self::$_requests[0])) {
            return array('base' => null);
        }
        return array('base' => self::$_requests[0]->base);
    }

    /**
     * Reloads default Router settings.  Resets all class variables and
     * removes all connected routes.
     *
     * @return void
     */
    public static function reload() {
        if (empty(self::$_initialState)) {
            self::$_initialState = get_class_vars('Router');
            self::_setPrefixes();
            return;
        }
        foreach (self::$_initialState as $key => $val) {
            if ($key != '_initialState') {
                self::${$key} = $val;
            }
        }
        self::_setPrefixes();
    }

    /**
     * Promote a route (by default, the last one added) to the beginning of the list
     *
     * @param integer $which A zero-based array index representing the route to move. For example,
     *    if 3 routes have been added, the last route would be 2.
     * @return boolean Returns false if no route exists at the position specified by $which.
     */
    public static function promote($which = null) {
        if ($which === null) {
            $which = count(self::$routes) - 1;
        }
        if (!isset(self::$routes[$which])) {
            return false;
        }
        $route = & self::$routes[$which];
        unset(self::$routes[$which]);
        array_unshift(self::$routes, $route);
        return true;
    }

    /**
     * Finds URL for specified action.
     *
     * Returns an URL pointing to a combination of controller and action. Param
     * $url can be:
     *
     * - Empty - the method will find address to actual controller/action.
     * - '/' - the method will find base URL of application.
     * - A combination of controller/action - the method will find url for it.
     *
     * There are a few 'special' parameters that can change the final URL string that is generated
     *
     * - `base` - Set to false to remove the base path from the generated url. If your application
     *   is not in the root directory, this can be used to generate urls that are 'cake relative'.
     *   cake relative urls are required when using requestAction.
     * - `?` - Takes an array of query string parameters
     * - `#` - Allows you to set url hash fragments.
     * - `full_base` - If true the `FULL_BASE_URL` constant will be prepended to generated urls.
     *
     * @param mixed $url Cake-relative URL, like "/products/edit/92" or "/presidents/elect/4"
     *   or an array specifying any of the following: 'controller', 'action',
     *   and/or 'plugin', in addition to named arguments (keyed array elements),
     *   and standard URL arguments (indexed array elements)
     * @param mixed $full If (bool) true, the full base URL will be prepended to the result.
     *   If an array accepts the following keys
     *    - escape - used when making urls embedded in html escapes query string '&'
     *    - full - if true the full base URL will be prepended.
     * @return string Full translated URL with base path.
     */
    public static function url($url = null, $full = false) {
        $params = array('plugin' => null, 'controller' => null, 'action' => 'index');

        if (is_bool($full)) {
            $escape = false;
        } else {
            extract($full + array('escape' => false, 'full' => false));
        }

        $path = array('base' => null);
        if (!empty(self::$_requests)) {
            $request = self::$_requests[count(self::$_requests) - 1];
            $params = $request->params;
            $path = array('base' => $request->base, 'here' => $request->here);
        }

        $base = $path['base'];

        //<!-- Edit Here
        $language = $extension = $output = $q = $frag = null;
        $fullBaseUrl = FULL_BASE_URL;
        //--> /Edit Here

        if (empty($url)) {
            $output = isset($path['here']) ? $path['here'] : '/';
            if ($full && defined('FULL_BASE_URL')) {
                $output = FULL_BASE_URL . $output;
            }
            return $output;
        } elseif (is_array($url)) {
            if (isset($url['base']) && $url['base'] === false) {
                $base = null;
                unset($url['base']);
            }
            if (isset($url['full_base']) && $url['full_base'] === true) {
                $full = true;
                unset($url['full_base']);
            }

            //<!-- Edit Here
            if (!empty($url['language'])) {
                $language = $url['language'];
            }
            unset($url['language']);
            if ($language && is_string(self::$_negotiation)) {
                if (!isset($url['?'])) {
                    $url['?'] = array();
                }
                if (is_array($url['?'])) {
                    $url['?'][self::$_negotiation] = $language;
                } else {
                    $url['?'] .='&' . self::$_negotiation . '=' . $language;
                }
            }
            if (!isset($url['ext'])) {
                if (self::$_validExtensions) {
                    $url['ext'] = self::$_validExtensions[0];
                }
            } elseif ($url['ext'] == false) {
                $extension = '/';
                unset($url['ext']);
            }
            //--> /Edit Here

            if (isset($url['?'])) {
                $q = $url['?'];
                unset($url['?']);
            }
            if (isset($url['#'])) {
                $frag = '#' . urlencode($url['#']);
                unset($url['#']);
            }
            if (isset($url['ext'])) {
                $extension = '.' . $url['ext'];
                unset($url['ext']);
            }
            if (empty($url['action'])) {
                if (empty($url['controller']) || $params['controller'] === $url['controller']) {
                    $url['action'] = $params['action'];
                } else {
                    $url['action'] = 'index';
                }
            }

            $prefixExists = (array_intersect_key($url, array_flip(self::$_prefixes)));
            foreach (self::$_prefixes as $prefix) {
                if (!empty($params[$prefix]) && !$prefixExists) {
                    $url[$prefix] = true;
                } elseif (isset($url[$prefix]) && !$url[$prefix]) {
                    unset($url[$prefix]);
                }
                if (isset($url[$prefix]) && strpos($url['action'], $prefix . '_') === 0) {
                    $url['action'] = substr($url['action'], strlen($prefix) + 1);
                }
            }

            $url += array('controller' => $params['controller'], 'plugin' => $params['plugin']);

            $match = false;

            for ($i = 0, $len = count(self::$routes); $i < $len; $i++) {

                //<!-- Edit Here
                if (isset(self::$routes[$i]->options['language'])) {
                    continue;
                }
                //--> /Edit Here

                $originalUrl = $url;

                if (isset(self::$routes[$i]->options['persist'], $params)) {
                    $url = self::$routes[$i]->persistParams($url, $params);
                }

                if ($match = self::$routes[$i]->match($url)) {
                    $output = trim($match, '/');
                    break;
                }
                $url = $originalUrl;
            }
            if ($match === false) {
                $output = self::_handleNoRoute($url);
            }
        } else {
            if (
                    (strpos($url, '://') !== false ||
                    (strpos($url, 'javascript:') === 0) ||
                    (strpos($url, 'mailto:') === 0)) ||
                    (!strncmp($url, '#', 1))
            ) {
                return $url;
            }
            if (substr($url, 0, 1) === '/') {
                $output = substr($url, 1);
            } else {
                foreach (self::$_prefixes as $prefix) {
                    if (isset($params[$prefix])) {
                        $output .= $prefix . '/';
                        break;
                    }
                }
                if (!empty($params['plugin']) && $params['plugin'] !== $params['controller']) {
                    $output .= Inflector::underscore($params['plugin']) . '/';
                }
                $output .= Inflector::underscore($params['controller']) . '/' . $url;
            }
        }
        $protocol = preg_match('#^[a-z][a-z0-9+-.]*\://#i', $output);
        if ($protocol === 0) {

            //<!-- Edit Here
            if (!$language) {
                if (self::$_langPrefix && !stristr($output, self::$_langPrefix . '/')) {
                    $base = $base . '/' . self::$_langPrefix;
                }
            } elseif (is_bool(self::$_negotiation)) {
                if (($config = self::getConfig(null, $language))) {
                    if (self::$_negotiation === false) {
                        if (!empty($config['domain'])) {
                            $fullBaseUrl = self::fullBaseUrl($config['domain']);
                        }
                    } elseif (!empty($config['prefix']) && (self::$_langPrefix || $config['code'] !== self::$_language['code'])) {
                        $base = $base . '/' . $config['prefix'];
                    }
                }
            }
            $output = str_replace('//', '/', $base . '/' . $output);
            if ($full) {
                $output = $fullBaseUrl . $output;
            }
            //--> /Edit Here

            if (!empty($extension)) {
                $output = rtrim($output, '/');
            }
        }
        return $output . $extension . self::queryString($q, array(), $escape) . $frag;
    }

    /**
     * A special fallback method that handles url arrays that cannot match
     * any defined routes.
     *
     * @param array $url A url that didn't match any routes
     * @return string A generated url for the array
     * @see Router::url()
     */
    protected static function _handleNoRoute($url) {
        $named = $args = array();
        $skip = array_merge(
                array('bare', 'action', 'controller', 'plugin', 'prefix'), self::$_prefixes
        );

        $keys = array_values(array_diff(array_keys($url), $skip));
        $count = count($keys);

        // Remove this once parsed URL parameters can be inserted into 'pass'
        for ($i = 0; $i < $count; $i++) {
            $key = $keys[$i];
            if (is_numeric($keys[$i])) {
                $args[] = $url[$key];
            } else {
                $named[$key] = $url[$key];
            }
        }

        list($args, $named) = array(Set::filter($args, true), Set::filter($named, true));
        foreach (self::$_prefixes as $prefix) {
            if (!empty($url[$prefix])) {
                $url['action'] = str_replace($prefix . '_', '', $url['action']);
                break;
            }
        }

        if (empty($named) && empty($args) && (!isset($url['action']) || $url['action'] === 'index')) {
            $url['action'] = null;
        }

        $urlOut = array_filter(array($url['controller'], $url['action']));

        if (isset($url['plugin'])) {
            array_unshift($urlOut, $url['plugin']);
        }

        foreach (self::$_prefixes as $prefix) {
            if (isset($url[$prefix])) {
                array_unshift($urlOut, $prefix);
                break;
            }
        }
        $output = implode('/', $urlOut);

        if (!empty($args)) {
            $output .= '/' . implode('/', array_map('rawurlencode', $args));
        }

        if (!empty($named)) {
            foreach ($named as $name => $value) {
                if (is_array($value)) {
                    $flattend = Set::flatten($value, '][');
                    foreach ($flattend as $namedKey => $namedValue) {
                        $output .= '/' . $name . "[$namedKey]" . self::$_namedConfig['separator'] . rawurlencode($namedValue);
                    }
                } else {
                    $output .= '/' . $name . self::$_namedConfig['separator'] . rawurlencode($value);
                }
            }
        }
        return $output;
    }

    /**
     * Generates a well-formed querystring from $q
     *
     * @param string|array $q Query string Either a string of already compiled query string arguments or
     *    an array of arguments to convert into a query string.
     * @param array $extra Extra querystring parameters.
     * @param boolean $escape Whether or not to use escaped &
     * @return array
     */
    public static function queryString($q, $extra = array(), $escape = false) {
        if (empty($q) && empty($extra)) {
            return null;
        }
        $join = '&';
        if ($escape === true) {
            $join = '&amp;';
        }
        $out = '';

        if (is_array($q)) {
            $q = array_merge($extra, $q);
        } else {
            $out = $q;
            $q = $extra;
        }
        $out .= http_build_query($q, null, $join);
        if (isset($out[0]) && $out[0] != '?') {
            $out = '?' . $out;
        }
        return $out;
    }

    /**
     * Reverses a parsed parameter array into a string. Works similarly to Router::url(), but
     * Since parsed URL's contain additional 'pass' and 'named' as well as 'url.url' keys.
     * Those keys need to be specially handled in order to reverse a params array into a string url.
     *
     * This will strip out 'autoRender', 'bare', 'requested', and 'return' param names as those
     * are used for CakePHP internals and should not normally be part of an output url.
     *
     * @param CakeRequest|array $params The params array or CakeRequest object that needs to be reversed.
     * @param boolean $full Set to true to include the full url including the protocol when reversing
     *     the url.
     * @return string The string that is the reversed result of the array
     */
    public static function reverse($params, $full = false) {
        if ($params instanceof CakeRequest) {
            $url = $params->query;
            $params = $params->params;
        } else {
            $url = $params['url'];
        }
        $pass = isset($params['pass']) ? $params['pass'] : array();
        $named = isset($params['named']) ? $params['named'] : array();

        unset(
                $params['pass'], $params['named'], $params['paging'], $params['models'], $params['url'], $url['url'], $params['autoRender'], $params['bare'], $params['requested'], $params['return'], $params['_Token']
        );
        $params = array_merge($params, $pass, $named);
        if (!empty($url)) {
            $params['?'] = $url;
        }
        return Router::url($params, $full);
    }

    /**
     * Normalizes a URL for purposes of comparison.  Will strip the base path off
     * and replace any double /'s.  It will not unify the casing and underscoring
     * of the input value.
     *
     * @param mixed $url URL to normalize Either an array or a string url.
     * @return string Normalized URL
     */
    public static function normalize($url = '/') {
        if (is_array($url)) {
            $url = Router::url($url);
        } elseif (preg_match('/^[a-z\-]+:\/\//', $url)) {
            return $url;
        }
        $request = Router::getRequest();

        if (!empty($request->base) && stristr($url, $request->base)) {
            $url = preg_replace('/^' . preg_quote($request->base, '/') . '/', '', $url, 1);
        }
        $url = '/' . $url;

        while (strpos($url, '//') !== false) {
            $url = str_replace('//', '/', $url);
        }
        //<!-- Edit Here
        //$url = preg_replace('/(?:(\/$))/', '', $url);
        //--> /Edit Here

        if (empty($url)) {
            return '/';
        }
        return $url;
    }

    /**
     * Returns the route matching the current request URL.
     *
     * @return CakeRoute Matching route object.
     */
    public static function &requestRoute() {
        return self::$_currentRoute[0];
    }

    /**
     * Returns the route matching the current request (useful for requestAction traces)
     *
     * @return CakeRoute Matching route object.
     */
    public static function &currentRoute() {
        return self::$_currentRoute[count(self::$_currentRoute) - 1];
    }

    /**
     * Removes the plugin name from the base URL.
     *
     * @param string $base Base URL
     * @param string $plugin Plugin name
     * @return string base url with plugin name removed if present
     */
    public static function stripPlugin($base, $plugin = null) {
        if ($plugin != null) {
            $base = preg_replace('/(?:' . $plugin . ')/', '', $base);
            $base = str_replace('//', '', $base);
            $pos1 = strrpos($base, '/');
            $char = strlen($base) - 1;

            if ($pos1 === $char) {
                $base = substr($base, 0, $char);
            }
        }
        return $base;
    }

    /**
     * Instructs the router to parse out file extensions from the URL. For example,
     * http://example.com/posts.rss would yield an file extension of "rss".
     * The file extension itself is made available in the controller as
     * `$this->params['ext']`, and is used by the RequestHandler component to
     * automatically switch to alternate layouts and templates, and load helpers
     * corresponding to the given content, i.e. RssHelper. Switching layouts and helpers
     * requires that the chosen extension has a defined mime type in `CakeResponse`
     *
     * A list of valid extension can be passed to this method, i.e. Router::parseExtensions('rss', 'xml');
     * If no parameters are given, anything after the first . (dot) after the last / in the URL will be
     * parsed, excluding querystring parameters (i.e. ?q=...).
     *
     * @return void
     * @see RequestHandler::startup()
     */
    public static function parseExtensions() {
        self::$_parseExtensions = true;
        if (func_num_args() > 0) {
            self::$_validExtensions = func_get_args();
        }
    }

    /**
     * Get the list of extensions that can be parsed by Router.  To add more
     * extensions use Router::parseExtensions()
     *
     * @return array Array of extensions Router is configured to parse.
     */
    public static function extensions() {
        return self::$_validExtensions;
    }

}

//Save the initial state
Router::reload();
//<!-- Edit Here
Router::init();
